На латыни: Homo qui erranti comiter monstrat viam, Quasi lumen de suo lumine accendat facit; Nihilo minus ipsi lucet, cum illi accenderit.
He who civilly shows the way to one who has missed it, is as one who has lighted another's lamp from his own lamp; it none the less gives light to himself when it burns for the other.
Цитирует Цицероном в De Officiis, книга I, глава XVI